Hello, 

please help.  thanks. 

When I run the program and I get this error message when I click on the second page.

The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.

I had page number on HTML like this:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="OrgCode"
    PageSize="35" AllowPaging="True">
    <Columns>
        <asp:BoundField DataField="OrgCode" HeaderText="Agency" ReadOnly="True" SortExpression="OrgCode"
            ItemStyle-Width="450px" />
        <asp:BoundField DataField="Status" HeaderText="Status" />
    </Columns>
</asp:GridView>

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    lblMessage.Text = Session("message")
    Select Case lblMessage.Text
        Case "Administrative/Computer"
            GetFieldwork("QAdministrativeComputers_sp")
        Case "Child/Youth"
            GetFieldwork("QChildYouthService_sp")
        Case "Counseling"
            GetFieldwork("QCounselingServices_sp")
        Case "Elderly"
            GetFieldwork("QElderlyService_sp")
        Case "Families/Couples"
            GetFieldwork("QFamiliesCouples_sp")
        Case "Health Issues"
            GetFieldwork("QHealthIssues_sp")
        Case "Other Programs"
            GetFieldwork("QOtherPrograms_sp")
        Case "No Background Clearance Required"
            GetFieldwork("QBGClearance_sp")
        Case "Person with Disabilities"
            GetFieldwork("QPersonDisabilities_sp")
        Case "Recreation Programs"
            GetFieldwork("QRecreationPrograms_sp")
        Case "Substance Abuse"
            GetFieldwork("QSubstanceAbuse_sp")
        Case "Tutoring Serives"
            GetFieldwork("QTutoringServices_sp")
        Case "Paid Internship"
            GetFieldwork("QPaidInternship_sp")
    End Select
End Sub

Private Sub GetFieldwork(ByVal procedure As String)
    Using con As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("DBHUSRConnectionString").ConnectionString)
        Using cmd As SqlCommand = New SqlCommand(procedure, con)
            cmd.CommandType = CommandType.StoredProcedure
            Using sda As SqlDataAdapter = New SqlDataAdapter()
                sda.SelectCommand = cmd
                Dim dt As DataTable = New DataTable()
                sda.Fill(dt)
                GridView1.DataSource = dt
                GridView1.DataBind()
            End Using
        End Using
    End Using
End Sub